The distance around a circle is its circumference and it can be measured in any linear units.
the answer is degree , God bless .
Light years or parsecs
Light-Years
Because it is a large number, suitable for large distances. Astronomers also like to use the unit Parsec.
There are MANY units used to measure distances both in Metric and in English types. We use Feet and Yards to measure distances in the US. The academic field often uses metric units like meters and kilometers to measure distances. For larger or massive distances there are the units of miles (English) and Kilomiters (Metric) and then in space we have the Astonomical Unit (Distance from earth to Sun) and the Light Year for the biggest distances. And there are the smaller measures of inches and millimeters.
. . . . . . . . . .Scientists mainly use Astrological Units [abbre. AU ] to measure distances within the Solar System. 1 Astrological Unit is somewhere around 49,580,000 - 49,590,000 kilometers, or roughly 49,600,000 kilometers if you prefer to round up.- S0L+++AstroNOMICAL, NOT Astrological!Astronomy is the science, using Astronomical Units.Astrology is collective name for an assortment of similar, semi-religious beliefs.. . . . . . . . . .
a Lightyear, around 1013 kilometres.
you would measure distances in centimetres, metres and kilo metres.
AU is not used to measure the distances on earth, because a astronomical unit is a unit of measurement equal to the distance between Earth and Sun. So that's why you cannot use Au for measure the distances on Earth.
It depends on what you are trying to measure. Long distances usually are measured in miles. Survey distances usually are measured in feet.
A circle can have a unit of length which could be either a measure of its diameter or radius, or of its circumference. Or the circle could have the unit of area.
To measure the distance of stars you have to measure by light years.
To measure smaller distances.
meters or kilometers.
Miles or Kilometers
Usually Miles or Kilometers
Light years or parsecs
metres, kilometres .................................